Gaya APA
Practical English Language Teaching. (2003).
New York:
McGraw-Hill.
Gaya Chicago
Practical English Language Teaching.
.
New York:
McGraw-Hill,
2003.
Buku.
Gaya MLA
Practical English Language Teaching.
.
New York:
McGraw-Hill,
2003.
Buku.
Gaya Turabian
Practical English Language Teaching.
New York:
McGraw-Hill,
2003.
Buku.